Genetic Variant RAD50:c.3390-4C>T (chr5-132637111-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_005732.4(RAD50):c.3390-4C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,452,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

RAD50
NM_005732.4 splice_region, intron

Scores

Splicing: ADA: 0.0001140

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0970

Publications

0 publications found

Variant links:

Genes affected

RAD50 (HGNC:9816): (RAD50 double strand break repair protein) The protein encoded by this gene is highly similar to Saccharomyces cerevisiae Rad50, a protein involved in DNA double-strand break repair. This protein forms a complex with MRE11 and NBS1. The protein complex binds to DNA and displays numerous enzymatic activities that are required for nonhomologous joining of DNA ends. This protein, cooperating with its partners, is important for DNA double-strand break repair, cell cycle checkpoint activation, telomere maintenance, and meiotic recombination. Knockout studies of the mouse homolog suggest this gene is essential for cell growth and viability. Mutations in this gene are the cause of Nijmegen breakage syndrome-like disorder.[provided by RefSeq, Apr 2010]

RAD50 links:

ENSG00000283782 (HGNC:):

ENSG00000283782 links:

TH2LCRR (HGNC:40495): (T helper type 2 locus control region associated RNA)

TH2LCRR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.6).

BP6

Variant 5-132637111-C-T is Benign according to our data. Variant chr5-132637111-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 729834.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAD50	NM_005732.4 link	c.3390-4C>T		splice_region_variant, intron_variant	Intron 21 of 24	ENST00000378823.8	NP_005723.2	Q92878-1A5D6Y3
TH2LCRR	NR_132124.1 link	n.153+1047G>A		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAD50	ENST00000378823.8 link	c.3390-4C>T		splice_region_variant, intron_variant	Intron 21 of 24	1	NM_005732.4	ENSP00000368100.4		Q92878-1
ENSG00000283782	ENST00000638452.2 link	c.3093-4C>T		splice_region_variant, intron_variant	Intron 23 of 26	5		ENSP00000492349.2		A0A1W2PQ90

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000138

AC:

AN:

1452870

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

722908

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33278

American (AMR)

AF:

0.00

AC:

AN:

44570

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25784

East Asian (EAS)

AF:

0.00

AC:

AN:

39188

South Asian (SAS)

AF:

0.0000233

AC:

AN:

85768

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52158

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5654

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1106668

Other (OTH)

AF:

0.00

AC:

AN:

59802

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.002339), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.350

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Benign:1

Nov 01, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.60

CADD

Benign

6.1

(source)

DANN

Benign

0.70

PhyloP100

0.097

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00011

dbscSNV1_RF

Benign

0.0040

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over